Still hospitalized in chains from his recent post-arrest suicide attempt, homeless high-risk sex fiend Jonathan Stewart was arraigned via video today the rape of a 21-year-old woman in Hudson River Park in TriBeCa last weekend.

In asking successfully that he remain held without bail, Manhattan prosecutors alleged that Stewart — already a top-level sex offender at age 25 — actually raped his terrified victim twice.

Stewart had dragged the woman in a chokehold from the bench where she’d been sitting into some nearby bushes, assistant district attorney Alyssa Gunther told Manhattan Criminal Court Judge Melissa Jackson, who informed Stewart of the charges against him via video hookup to Bellevue Hospital.

When she broke free after being raped a first time, “She wasn’t able to get far before he caught her,” the prosecutor told the judge.

Stewart dragged her back into the bushes, again in a strangle-hold, raping her there a second time, the prosecutor said.

Fortunately parks officers were nearby when the woman — naked and hysterical — could finally break free. They covered her with a blanket and pursued Stewart to his hiding place on a median on West Street and North Moore Street, holding him for cops.

Told Stewart had tried to hang himself while in lockup awaiting arraignment last weekend, the victim wondered what took him so long. Stewart had been paroled in July after serving seven years in state prison on a robbery and sex-abuse conviction.

A grand jury has already indicted Stewart for Saturday’s rape; the charges will be unsealed on his next court date, Oct. 23, officials said.